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“绿途”系统:公民科学时代的植被调查制图新工具 被引量:6
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作者 金时超 胡天宇 +4 位作者 苏艳军 马勤 关宏灿 杨默含 郭庆华 《中国科学:生命科学》 CSCD 北大核心 2021年第3期362-374,共13页
植被图是了解植被空间分布状态和地理格局的地图,是自然资源研究和管理决策的重要辅助信息源.植被制图是以植被调查数据为基础,辅以3S(遥感、地理信息系统、全球定位系统)技术,实现连续区域的植被制图.尽管3S技术得到了快速的发展,但是... 植被图是了解植被空间分布状态和地理格局的地图,是自然资源研究和管理决策的重要辅助信息源.植被制图是以植被调查数据为基础,辅以3S(遥感、地理信息系统、全球定位系统)技术,实现连续区域的植被制图.尽管3S技术得到了快速的发展,但是获取海量的植被群系分布信息依然是大尺度植被制图至关重要的前提,并成为当前植被制图的关键瓶颈.随着智能终端的流行和公民科学的兴起,以个人遥感手段为核心的众包模式为植被群系调查带来了新的发展机遇.本研究开发了一套基于智能手机和网页端服务的植被类型众源采集与分析平台——"绿途"."绿途"系统的手机端支持安卓和iOS系统,主要功能包括数据收集、图层管理、兴趣点管理、轨迹管理、用户信息、数据展示以及其他辅助功能,能高效地在野外采集带有地理位置信息的照片和点位记录."绿途"系统的网页端具备与手机端相应的管理功能,还包括对数据的分级审核功能.2018年7月至今,"绿途"系统已累计采集数据记录108083条,分布于全国的34个省市自治区,覆盖7种植被型组和582个植被群系类型.该系统单日上传的最大数据量为5358条、单人单日上传最大数据总量为2543条."绿途"系统采集的数据作为地面调查样本被成功应用于1:100万中国植被图的更新,并正在服务于1:50万中国植被图的绘制,有望促进更多植被生态领域的科学研究和管理政策制定. 展开更多
关键词 绿途 植被图 众包 公民科学 APP 网页端
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Date Palm and Their Different Food Uses in Algeria's South-West Oases: Touat, Gourara and Tidikelt
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作者 Merzaia Blama Aicha Zaki Abdennebi +2 位作者 Moussaoui Boudjemaa Babker Abdekader Abakhti Abdekader 《Journal of Chemistry and Chemical Engineering》 2016年第4期180-184,共5页
Dates are considered as the most important food in the south-west oases of Algeria. The Date Palm (Phoenix dactylifera) has known some kind of specificity in its different life phases, compared to all the rest of oa... Dates are considered as the most important food in the south-west oases of Algeria. The Date Palm (Phoenix dactylifera) has known some kind of specificity in its different life phases, compared to all the rest of oases cultivate plants. It is thanks to that person could settle down. A study within a ministerial research project about the date palm variety in the previous areas has shown that there are 400 spices of dates. Thanks to this diversification types, members of this community were able to acquire experience in the field of the uses of date in their nutritional behaviour. Harvest begins from precocious summer's soft date variety in June, as in the late autumn variety in October. In addition, there are different type of the date: wet, semi-wet and dry date. For each variety, there is a particular method of its use. It is an example of sustainable food, is the one present in all oasis occasions. The aim of the current study was to examine the different methods of nutritional ate uses, in Touat, Gourara and Tidikelt, by its inhabitants, and to show the local skills sustained across the generations. 展开更多
关键词 Dates varieties USES Touat Gourara and Tidikelt nutritional behavior local skills.
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